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CAT28WC129 fiches techniques PDF

Catalyst Semiconductor - 128K-Bit I2C Serial CMOS E2PROM

Numéro de référence CAT28WC129
Description 128K-Bit I2C Serial CMOS E2PROM
Fabricant Catalyst Semiconductor 
Logo Catalyst Semiconductor 





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CAT28WC129 fiche technique
Preliminary
CAT24WC129
128K-Bit I2C Serial CMOS E2PROM
FEATURES
s 1MHz I2C Bus Compatible*
s 1.8 to 6 Volt Operation
s Low Power CMOS Technology
s 64-Byte Page Write Buffer
www.DataSheet4sU.cSomelf-Timed Write Cycle with Auto-Clear
s Commercial, Industrial and Automotive
Temperature Ranges
DESCRIPTION
The CAT24WC129 is a 128K-bit Serial CMOS E2PROM
internally organized as 16384 words of 8 bits each.
Catalyst’s advanced CMOS technology substantially
reduces device power requirements. The
s Write Protect Feature
– Top 1/4 Array Protected When WP at VIH
s 100,000 Program/Erase Cycles
s 100 Year Data Retention
s 8-Pin DIP or 8-Pin SOIC
CAT24WC129 features a 64-byte page write buffer. The
device operates via the I2C bus serial interface and is
available in 8-pin DIP or 8-pin SOIC packages.
PIN CONFIGURATION
DIP Package (P)
NC
NC
NC
VSS
1
2
3
4
8 VCC
7 WP
6 SCL
5 SDA
SOIC Package (J,K)
NC
NC
NC
VSS
1
2
3
4
8 VCC
7 WP
6 SCL
5 SDA
24WC129 F01
PIN FUNCTIONS
Pin Name
Function
SDA
Serial Data/Address
SCL Serial Clock
WP Write Protect
VCC +1.8V to +6V Power Supply
VSS Ground
BLOCK DIAGRAM
EXTERNAL LOAD
VCC
VSS
DOUT
ACK
WORD ADDRESS
BUFFERS
SDA
START/STOP
LOGIC
SENSE AMPS
SHIFT REGISTERS
COLUMN
DECODERS
512
XDEC 256
E2PROM
256X512
CONTROL
WP LOGIC
SCL STATE COUNTERS
DATA IN STORAGE
HIGH VOLTAGE/
TIMING CONTROL
* Catalyst Semiconductor is licensed by Philips Corporation to carry the I2C Bus Protocol.
24WC129 F02
© 1998 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
1
Doc. No. 25065-00 6/99 S-1

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